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A diet of algae and seagrasses gives this turtle ( Chelonia mydas ) greenish colored fat—and its name. Weighing as much as 500 pounds, the threatened green sea turtle lives its life at sea, with only females coming to shore to...

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The International Union for the Conservation of Nature ( IUCN ) maintains the Red List of Threatened Species , an inventory of the global conservation status of plants and animals. In a 2010 study ,...

Amanda Feuerstein with a nesting olive ridley ( Lepidochelys olivacea ). Feuerstein is a co-author of a study that surveyed algae, crustaceans, mollusks, and other epibionts that live on olive ridley...

The Sundarbans National Park site in India was inscribed on the World Heritage List in 1987. The site, located in the Ganges delta, contains the world's largest mangrove forest and hosts a number of...

I have been to this location many times, but no other photo has come out like this one composed with the sun behind a turtle’s head.” -- Nature's Best photographer, Pedro Carrillo. See more beautiful...

Sea turtles face many obstacles throughout their lives—net entanglement, light pollution, mistaking plastic for food—among the many that are caused by humans. Get a glimpse of what goes on behind-the...

How do we know where ocean animals swim day and night? Scientists are getting snapshots into the daily lives of whales , sharks , and even fish by tagging the animals to track their movements. You’ve...

Leatherback turtles ( Dermochelys coriacea ) are the largest sea turtles, growing as long as six and a half feet (2 m) and weighing some 2,000 pounds (900 kg). They’re unlike the other marine turtles...

Kemp’s ridley turtles ( Lepidochelys kempii ) are one of the smallest sea turtles, weighing only 100 lbs (45 kg). Adults spend most of their time in shallow coastal areas in places with mud, sand, or...

The Kemp’s ridley is a “riddler” among sea turtles . Although the species was initially recognized in 1880, scientists didn't know where it nested until 80 years later, when a film documenting about...

Every year, at the same place and time, thousands of female Kemp's ridley sea turtles ( Lepidochelys kempii ) come ashore to nest and lay their eggs on the beach. This mass nesting event is known as...